A single crystal of bis glycine maleate has been grown from aqueous solution by slow evaporation method by optimizing the growth parameters within a period of 45 days. From the x-ray diffraction, the crystal was found to crystallize in a hexagonal structure with a=7.402 Å, b=7.04 Å, c= 5.48 A and α=β=90 °, γ =120 °. The functional group was confirmed by FTIR analysis. The photoconductivity study confirmed that it is a positive photoconductivity. Thermal studies have also been studied and by investigating to the second harmonic generation it is confirmed to be a non-linear crystal. The results have been discussed in detail.